From The Collaborative International Dictionary of English v.0.48 [gcide]:
Nit \Nit\ (n[i^]t), noun [AS. hnitu; akin to D. neet, G. niss, OHG. niz; cf. Gr. koni's, koni'dos, Icel. gnit, Sw. gnet, Dan. gnid, Russ. & Pol. gnida, Bohem. hnida, W. nedd.] (Zool.) The egg of a louse or other small insect.
From WordNet (r) 3.0 (2006) [wn]:
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